Jerry, I had the same problem with my S. It started at about 8,000 miles. The dealer found a small nick in the leading edge of one brake disc and replaced it. Was not covered under warrenty ( road hazzard ). The disc they put on was not the right disc for the bike. It had a groove on the leading edge and was painted black. Obvious, huh? The pulsing stopped for a few hundred miles until the pads got beded and started again. They replaced the disc ,this time under warrenty. Problem returned. Replaced both discs and new pads under warrenty. Have since gone about 3,500 miles. Seems to be OK, but have been fooling around with this since the first of November last year. I have 27,500 miles on the bike now. It's also had two clutches and a shifter drum replaced. They neglected to soak the first clutch in oil before installation. Woops.It still doesn't shift right into second and third. I suspect the shifter forks are worn. I don't know why they didn't just replace the entire transmission the first time. Both clutches had to be ordered from Germany. That's service for you.Also computer would not indicate what gear you were in or show neutral after new shifter drum was installed. Had to order a new potentiometer with a different plug to get it to work. I kept the "road hazzard" disc and checked it with a micrometer and found no variation. I returned it and they are deciding to credit me the cost or not. I'll call them tomorrow. Oh well. Just venting. Good luck. I hope you get your problem resolved in less than one year and 20,000 miles like mine.